Axelsson G, Rylander R, Molin I
Department of Environmental Hygiene, University of Gothenburg, Sweden.
Br J Ind Med. 1989 Jun;46(6):393-8. doi: 10.1136/oem.46.6.393.
The relation between irregular and inconvenient working hours and the outcome of pregnancy was studied among women employed at a hospital in Sweden some time between 1980 and 1984. A questionnaire was distributed to 807 women; 81% replied. The pregnancies were divided into six groups with respect to work schedules during pregnancy. A slightly, but not significantly, increased risk of miscarriage was found in women who worked irregular hours or rotating shifts compared with women who worked only during the day (RR = 1.44, 95% confidence interval 0.83-2.51). Infants of non-smoking mothers who worked irregular hours had significantly lower birth weights than infants of non-smoking women working day time only. This difference was largest at birth order 2+. Similar results were found for infants of this birth order whose non-smoking mothers worked evenings or rotating shift.
1980年至1984年期间，在瑞典一家医院工作的女性中，研究了不规律和不方便的工作时间与妊娠结局之间的关系。向807名女性发放了问卷，81%的女性进行了回复。根据孕期的工作时间表，将妊娠分为六组。与只在白天工作的女性相比，从事不规律工作时间或轮班工作的女性流产风险略有增加，但不显著（相对危险度=1.44，95%置信区间0.83 - 2.51）。工作时间不规律的非吸烟母亲所生婴儿的出生体重显著低于仅在白天工作的非吸烟女性所生婴儿。这种差异在第二胎及以上出生顺序时最为明显。对于这一出生顺序的婴儿，其不吸烟且工作时间为晚上或轮班的母亲所生婴儿也有类似结果。
